CVE-2026-0718: Wpxpo Post Grid Gutenberg Blocks For News, Magazines, Blog Websites – Postx

Medium severity, CVSS 5.3. EPSS: 0.3% chance of exploitation in the next 30 days.

The Post Grid Gutenberg Blocks for News, Magazines, Blog Websites – PostX plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the ultp_shareCount_callback() function in all versions up to, and including, 5.0.5. This makes it possible for unauthenticated attackers to modify the share_count post meta for any post, including private or draft posts.

Affected products

• Wpxpo Post Grid Gutenberg Blocks For News, Magazines, Blog Websites – Postx: up to and including 5.0.5

Published 2026-04-16. Last modified 2026-06-17.